Mr. Chao has been a director since January 2018. Mr. Chao is the Chief Executive Officer of Tempest Peak Management LLC, a position he has held since December 2022. Mr. Chao served as Executive Chairman of Tanglewood Property Management Company, an affiliate of our principal stockholder, from July 2017 until December 2024. From August 2013 to July 2017, Mr. Chao was the Company’s Vice President of Business Development for Asia and Middle East and from July 2011 to August 2013 he was the Company’s Director of Business Development for Asia and Middle East. Prior to joining Westlake, Mr. Chao was President and Director at PT Titan Petrokimia Nusantara, a petrochemical company based in Indonesia, from January 2008 to December 2010. He is the son of James Y. Chao, the nephew of Albert Y. Chao, brother of Catherine T. Chao, and the cousin of John T. Chao and Carolyn C. Sabat. Mr. Chao received a bachelor’s degree in mechanical engineering from Rice University and an M.B.A. from the Wharton School of the University of Pennsylvania.

David T. Chao